:orphan:

.. title:: COAP_RANDOMIZE_ACK_TIMEOUT

.. option:: CONFIG_COAP_RANDOMIZE_ACK_TIMEOUT

*Randomize initial ACK timeout, as specified in RFC 7252*

Type: ``bool``

Help
====

If enabled, the initial ACK timeout will be randomized, as specified
in RFC 7252, i.e. will be a random number between ACK_TIMEOUT and
ACK_TIMEOUT * ACK_RANDOM_FACTOR (where ACK_TIMEOUT is specified by
COAP_INIT_ACK_TIMEOUT_MS option). Otherwise, the initial ACK timeout
will be fixed to the value of COAP_INIT_ACK_TIMEOUT_MS option.

Direct dependencies
===================

\ :option:`COAP <CONFIG_COAP>` && \ :option:`NETWORKING <CONFIG_NETWORKING>`

*(Includes any dependencies from ifs and menus.)*

Default
=======

- y

Kconfig definition
==================

.. highlight:: kconfig

At ``subsys/net/lib/coap/Kconfig:62``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:34`` → ``subsys/Kconfig:37`` → ``subsys/net/Kconfig:89`` → ``subsys/net/lib/Kconfig:6``

Menu path: (Top) → Sub Systems and OS Services → Networking → Link layer and IP networking support → Network Protocols → CoAP Support

.. parsed-literal::

    config COAP_RANDOMIZE_ACK_TIMEOUT
    	bool "Randomize initial ACK timeout, as specified in RFC 7252"
    	default y
    	depends on \ :option:`COAP <CONFIG_COAP>` && \ :option:`NETWORKING <CONFIG_NETWORKING>`
    	help
    	  If enabled, the initial ACK timeout will be randomized, as specified
    	  in RFC 7252, i.e. will be a random number between ACK_TIMEOUT and
    	  ACK_TIMEOUT * ACK_RANDOM_FACTOR (where ACK_TIMEOUT is specified by
    	  COAP_INIT_ACK_TIMEOUT_MS option). Otherwise, the initial ACK timeout
    	  will be fixed to the value of COAP_INIT_ACK_TIMEOUT_MS option.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*